Seasonal variation in essential oil composition of Artemisia herba-alba and their effects on antioxidant, antibacterial, and antifungal activities

IF 2.218 Q2 Chemistry Chemical Data Collections Pub Date : 2024-01-09 DOI:10.1016/j.cdc.2024.101118

Hayat Elwardani , Asmaa Oubihi , Sara Haida , Rabab Ez-Zriouli , Karima El Kabous , Mohammed Ouhssine

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Abstract

This study aimed to compare the essential oil yield and chemical composition of Artemisia herba-alba in the Anti-Atlas region, considering different harvest dates. The antibacterial and antifungal properties were also evaluated. Essential oils yields were 1.87 %, 1.85 %, and 2.35 % for the April, June and October harvests, respectively. Chromatographic analysis identified 21 compounds, with camphor, 1,8-cineole, and camphene as the main constituents. Artemisia herba-alba essential oils exhibited significant antibacterial and antifungal activities. The October-harvested oil showed notable antibacterial effects against Staphylococcus epidermidis (20 mm), while the June-collected essential oil demonstrated strong activity with a 20.66 mm inhibition zone against Acinobacter baumannii. Furthermore, the June-collected oil displayed significant antifungal activity with a 70.58 % inhibition index against Fusarium culmorum. Despite varying reducing powers with IC50 values, the antioxidant activity of the essential oils was relatively weaker compared to l-ascorbic acid, possibly due to the prevalence of non-phenolic compounds.

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艾蒿精油成分的季节性变化及其对抗氧化、抗菌和抗真菌活性的影响

本研究旨在比较反阿特拉斯（Anti-Atlas）地区蒿草的精油产量和化学成分，并考虑了不同的收获日期。此外，还对其抗菌和抗真菌特性进行了评估。四月、六月和十月收获的精油产量分别为 1.87%、1.85% 和 2.35%。色谱分析确定了 21 种化合物，樟脑、1,8-蒎烯和莰烯是主要成分。艾蒿精油具有显著的抗菌和抗真菌活性。十月采收的精油对表皮葡萄球菌的抗菌效果显著（20 毫米），而六月采集的精油对鲍曼尼杆菌的抑菌区为 20.66 毫米，表现出很强的活性。此外，六月采集的精油具有显著的抗真菌活性，对镰刀菌的抑制指数为 70.58%。尽管具有不同的还原力和 IC50 值，但与左旋抗坏血酸相比，精油的抗氧化活性相对较弱，这可能是由于非酚类化合物的普遍存在。

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来源期刊

Chemical Data Collections Chemistry-Chemistry (all)

CiteScore

6.10

自引率

0.00%

发文量

169

审稿时长

24 days

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